Sliding Door Roller Carrier Safety Slide Mechanism

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Solution Overview

Problem

The existing roller carrier systems for sliding doors are difficult to handle and secure when attaching and detaching from guide rails, especially when accessibility is limited and improper handling can lead to inadequate securing, risking detachment.

Innovation Solution

The roller carrier design includes a safety slide that automatically transitions between a secured and release position using a spring mechanism, with a lateral projection of the guide rail pushing the safety slide into the release position during installation and automatically securing it back in the safety position, enhancing ease and safety of handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the safety slide is manually pushed into the safety position after hanging the sliding door, then the roller carrier is secured against detaching from the guide rail, but the handling becomes difficult due to limited accessibility of the safety slide

Engineering Contradiction:
Improvesecuring against detachmentVSAvoidaccessibility of safety slide
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The safety slide automatically transitions to the safety position through a cam mechanism that converts the downward movement during hanging into the securing action, eliminating the need for manual intervention. The system serves itself by using the installation motion to trigger the securing function.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The safety slide is pre-positioned and automatically actuated during the hanging process itself, before the installer needs to concern themselves with securing. The cam mechanism is designed to engage the safety slide during the natural downward motion of installation.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the safety slide remains in the release position during hanging, then the roller carrier can be easily installed, but there is a risk that the roller carrier will not be adequately secured against detaching from the guide rail

Engineering Contradiction:
Improveease of installationVSAvoidsecuring against detachment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The cam mechanism automatically detects when the roller carrier is being hung and triggers the safety slide to move to the securing position, ensuring that securing happens automatically without requiring the installer to remember or manually actuate it.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system prepares the safety slide in advance to engage automatically during installation, cushioning against the potential error of forgetting to secure the roller carrier. The mechanical design ensures securing occurs as a natural part of the installation process.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If a manual securing mechanism is used, then the roller carrier can be securely fastened, but the handling and operation becomes more complex and time-consuming

Engineering Contradiction:
Improvesecuring mechanismVSAvoidcomplexity of safety mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The safety mechanism uses dynamic motion conversion through the cam profile, transforming the simple downward linear motion of installation into the rotational or translational motion needed to engage the safety slide. This dynamic approach replaces complex multi-step manual securing procedures.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cam mechanism merges the installation motion and the securing function into a single integrated action. What would traditionally require separate manual steps for securing is combined with the natural hanging motion, reducing both complexity and time.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This design simplifies the attachment and detachment process, ensuring secure engagement and disengagement of the roller carrier from the guide rail, reducing the risk of improper securing and enhancing user safety and convenience.

Implementation Method 1

between a securing position and a release position and which projects further beyond the second side leg in the securing position than in the release position

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentEP2663708B1Carrier for a sliding door
Publication Date: 2017.01.04 ANTON SCHNEIDER GMBH
  • EP2663708B1 patent drawing
  • EP2663708B1 patent drawing
  • EP2663708B1 patent drawing

AI summary

The invention relates to a roller support (1) for sliding doors (31), comprising a support body (2) which has an approximate U-shape in cross-section, a first lateral limb (3) of which is used as a mounting plate for fixing to a sliding door (31), and on the other second lateral limb (4) of which at least one roller (7) is mounted. The roller support also comprises a securing slider (10; 10') which is guided on the central connecting piece (5) of the support body (2) in a transversally movable manner parallel to the axis (8) of the roller between a securing position and a release position (7) and a securing extension (13) of which projects farther beyond the second lateral limb (4) in the securing position than in the release position. According to the invention, the securing slider (10; 10') is mounted to move freely from the securing position at least into the release position against the restoring force of a spring (19, 19').